Problem Description

Given A and B you have to find all stepping numbers in range A to B.

The stepping number:

A number is called as a stepping number if the adjacent digits have a difference of 1.

e.g. 123 is stepping number, but 358 is not a stepping number

Input Format

First argument is an integer A.

Second argument is an integer B.

Output Format

Return a integer array sorted in ascending order denoting the stepping numbers between A and B.

Example Input

Input 1:

 A = 10
 B = 20

Example Output

Output 1:

 [10, 12]

Example Explanation

Explanation 1:

 All stepping numbers are 10 , 12